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Q.

Potassium hydroxide is a strong base. The pH value for its aqueous solution is


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a

Equal to 7

b

Less than 7

c

More than 7

d

Less than or equal to 7 

answer is C.

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Detailed Solution

The pH value for aqueous solution of potassium hydroxide is more than 7.  pH is the measure of the acidity or basicity of a solution based on the concentration of the hydrogen ions in it. pH value less than 7 indicates the solution is acidic, more than 7 shows the solution is basic and if equals 7 then the solution is neutral. KOH is a strong base and dissociates completely in an aqueous solution and K+ and OH- ions are formed. The pH range of KOH ranges between 11 to 13.
 
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Potassium hydroxide is a strong base. The pH value for its aqueous solution is